Repropedia

A Reproductive Lexicon

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inhibin

Inhibin is a protein hormone made by the female ovaries and male testes and provides feedback messages to the anterior pituitary regarding the status of the reproductive tissues. In females, inhibin rises during follicle development and falls once a mature egg is released from the ovary. Inhibin blocks the hormone activin, and the loss of this hormone results in infertility or sterility.